266101338272 has 96 divisors (see below), whose sum is σ = 654274091520. Its totient is φ = 103498663680.

The previous prime is 266101338221. The next prime is 266101338311. The reversal of 266101338272 is 272833101662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1354379 + ... + 1538357.

It is an arithmetic number, because the mean of its divisors is an integer number (6815355120).

Almost surely, 2^266101338272 is an apocalyptic number.

266101338272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266101338272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327137045760).

266101338272 is an abundant number, since it is smaller than the sum of its proper divisors (388172753248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266101338272 is a wasteful number, since it uses less digits than its factorization.

266101338272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184594 (or 184586 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 266101338272 in words is "two hundred sixty-six billion, one hundred one million, three hundred thirty-eight thousand, two hundred seventy-two".